Structural optimization design of large-aperture mirror for space remote sensing camera

doi:10.3788/IRLA202049.0214002

CIOMP OpenIR

	Structural optimization design of large-aperture mirror for space remote sensing camera
	C. Zhang,X. Xi,Y. Wang,J. Zhu and Y. Guan
	2020
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN	10072276
卷号	49 期号:2 页码:6
摘要	In order to satisfy the stringent requirement for high surface shape accuracy and thermal stability of large-aperture mirrors in the complex space environment, a lightweight design for a 660 mmdiameter mirror was carried out. A method for creating the initial structure of the mirror using the classical theoretical formula, combining sensitivity analysis and parameter optimization for comprehensive design was proposed. Firstly, the parametric model was established, the influence law of the structure parameters of the mirror on the surface shape change was studied, and then iterations for the structural parameters with high sensitivity to the mirror surface RMS value were optimized through sensitivity analysis. Compared with the traditional mirror design model, this method reduced the optimization design space, saved computational cost and time, could globally optimize in the design space, and converged quickly to the optimal value. The mass of optimized mirror was 13.6 kg and the lightweight rate of the mirror reached 78.4%. The PV value of mirror surface accuracy was less than /10 and RMS value was less /40 (=632.8 nm) under gravity load. The first -order frequency 121 Hz of the mirror assembly met the dynamic stiffness requirements of the mirror. Finally, based on the optimized results, the optimal mirror was put into production. 2020, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
DOI	10.3788/IRLA202049.0214002
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收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64911
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	C. Zhang,X. Xi,Y. Wang,J. Zhu and Y. Guan. Structural optimization design of large-aperture mirror for space remote sensing camera[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2020,49(2):6.
APA	C. Zhang,X. Xi,Y. Wang,J. Zhu and Y. Guan.(2020).Structural optimization design of large-aperture mirror for space remote sensing camera.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,49(2),6.
MLA	C. Zhang,X. Xi,Y. Wang,J. Zhu and Y. Guan."Structural optimization design of large-aperture mirror for space remote sensing camera".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 49.2(2020):6.

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